package com.atguigu.gulimall.cart.controller;

import com.atguigu.gulimall.cart.interceptor.CartInterceptor;
import com.atguigu.gulimall.cart.service.CartService;
import com.atguigu.gulimall.cart.vo.Cart;
import com.atguigu.gulimall.cart.vo.CartItem;
import com.atguigu.gulimall.cart.vo.UserInfoTo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;

@Controller
public class CartController {

    @Autowired
    CartService cartService;

    /**
     * 浏览器有一个cookie：user-key：标识用户身份，一个月后过期。
     * 如果第一次使用jd的购物车功能，都会给一个临时的用户身份，
     * 浏览器以后保存，每次访问年度会带上这个cookie
     * <p>
     * 登录：session有
     * 没登录：按照cookie里面带来的user-key来做。
     * 第一次如果没有临时用户，还要创建一个临时用户。
     *
     * @param session
     * @return
     */
    @GetMapping("/cart.html")
    public String cartListPage(Model model) {
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }


    /**
     * 添加商品到购物车
     *
     * @return
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num, RedirectAttributes model) {
        cartService.addToCart(skuId, num);
        model.addAttribute("skuId", skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";
    }

    // 跳转到成功页
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam(value = "skuId") Long skuId, Model model) {
        CartItem cartItem = cartService.getCartItem(skuId);
        model.addAttribute("item", cartItem);
        return "success";
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("check") Integer check) {
        cartService.checkItem(skuId, check);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num) {
        cartService.countItem(skuId, num);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/deteleItem")
    public String countItem(@RequestParam("skuId") Long skuId) {
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/cunrrentUserCartItems")
    @ResponseBody
    public List<CartItem> getCunrrentUserCartItems(){
        return  cartService.getUserCartItems();
    }

}
